Most native plants can be grown beyond the dripline of Hickory trees, in well-drained and organically rich soil. Walnut trees exude toxic juglone, which is a health risk to many plants. The native plants listed below better tolerate the juglone, found in all parts of Walnut trees, so could be grown within the dripline. Clearing leaf and nut debris underneath the tree reduces juglone exposure to other plants, which would be helpful in a residential or urban settings. Other trees closely related to Black Walnut, such as Hickory trees, produce less juglone than Walnut and generally do not affect plant health.
Tolerant Wildflowers and Vines
aster species Symphyotrichum species
bee balm Monarda species
bloodroot Sanguinaria canadensis
blue mistflower Conoclinium coelestinum
clematis species Clematis species
coral bells Heuchera americana
Dutchman’s breeches Dicentra cucullaria
eastern Solomon’s plume Maianthemum racemosum
wild geranium Geranium maculatum
wild ginger Asurum canadense
goats beard Aruncus dioicus
golden ragwort Packera aurea
goldenrod species Solidago species
great blue lobelia Lobelia siphilitica
honeysuckle species Lonicera species
iris species Iris species
ironweed Vernonia species
Jack-in-the-pulpit Arisaema triphyllum
Joe-pye weed Eutrochium fistulosum
cardinal flower Lobelia cardinalis
Mayapple Podophyllum peltatum
phlox species Phlox species
black/brown- eyed Susan Rudbeckia species
rue anemone Thalictrum thalictroides
sedum S. glaucophyllum, S. ternatum
Solomon’s seal Polygonatum biflorum
VA spiderwort Tradescantia virginiana
trillium Trillium species
VA bluebells Mertensia virginica
violets Viola species
Virginia creeper Parthenocissus quinquefolia
yarrow, American Achillea borealis
